Performance Water Pump Kit for Audi S5 (2018-2026) 3.0L

All-In-One Performance Water Pump Kit for 2018-2026 Audi S5 (B9/B9.5)

What it Does: The Performance Water Pump Kit replaces the failure-prone factory cooling components on the 2018-2026 Audi S5 to restore mechanical coolant circulation, prevent overheating, and eliminate vacuum circuit contamination.

The Stock Audi S5 Cooling System Weakness

The factory cooling circuit on the EA839 3.0L turbocharged V6 is notorious for premature failure at the mechanical water pump and vacuum-actuated cooling control valves. The OEM composite shroud mechanisms and internal shaft seals degrade under elevated hot-vee operating temperatures. Over time, coolant breaches the internal pump seals and migrates directly into the vacuum solenoids and thermal pneumatic valve, triggering DTC faults, vacuum pump damage, and erratic engine temperatures under boost. Plastic impellers and thermostat housings also embrittle, risking catastrophic coolant loss.

The Engineering Solution

This comprehensive service kit replaces vulnerable factory components with a heavy-duty mechanical water pump assembly featuring a rigid aluminum housing and an aluminum impeller engineered to resist thermal fatigue and cavitation. By bundling the primary mechanical pump with a calibrated thermostat, high-temp coolant pipe, drive pulley, and fresh replacement vacuum solenoid valves, this coordinated overhaul eliminates coolant cross-contamination risks and restores factory thermal regulation under high engine loads.

What's Included

• 1 Engine Water Pump Assembly with Pulley
• 1 Thermostat
• 1 Water Pipe
• 1 Pulley
• 2 Solenoid Valves
• 1 Thermal Pneumatic Valve
• O-Ring and Fixing Bolt Hardware Set

Technical Specifications

Compatibility

• 2018-2026 Audi S5 3.0L Gas Turbo (Coupe, Cabriolet)
• 2018-2025 Audi S5 Sportback 3.0L Gas Turbo

Frequently Asked Questions & Fitment Warnings

Does this fit the B9 S5?

Yes, this is a direct fit for the 2018-2026 Audi S5 equipped with the EA839 3.0L single-turbo V6. This kit does not fit earlier supercharged 3.0T (B8/B8.5) applications or other engine displacements.

Do I need to bleed the system following installation?

Yes, technicians must perform a factory vacuum-fill and follow the diagnostic bleeding sequence to evacuate air locks from the complex multi-circuit cooling and heater matrix lines.

The Audi Standard

Modern Audi forced-induction powertrains operate with tight thermal tolerances. Installing an integrated cooling service kit with aluminum construction ensures reliable seal integrity, zero check engine lights, and sustained cooling efficiency under aggressive driving conditions.